A. \( P = (2 + 3\sqrt{2})\left(1 - \sqrt{2(3 - \sqrt{2})^2}\right) \) b. \( P = \left(\frac{3 + \sqrt{6}}{\sqrt{8} + \sqrt{12}} + \frac{\sqrt{27}}{6}\right) \cdot \frac{1}{\sqrt{3}} \) c. \( P = \frac{\sqrt{5} + 5}{\sqrt{5} + 1} + \frac{\sqrt{15} - \sqrt{5}}{\sqrt{3} - 1} + \frac{\sqrt{60} + 10}{\sqrt{3} + \sqrt{5}} \)

----- Nội dung ảnh -----
a. \( P = (2 + 3\sqrt{2})\left(1 - \sqrt{2(3 - \sqrt{2})^2}\right) \)
b. \( P = \left(\frac{3 + \sqrt{6}}{\sqrt{8} + \sqrt{12}} + \frac{\sqrt{27}}{6}\right) \cdot \frac{1}{\sqrt{3}} \)
c. \( P = \frac{\sqrt{5} + 5}{\sqrt{5} + 1} + \frac{\sqrt{15} - \sqrt{5}}{\sqrt{3} - 1} + \frac{\sqrt{60} + 10}{\sqrt{3} + \sqrt{5}} \)